TY - JOUR
T1 - Performance evaluation of asphalt mixtures containing high-RAP binder content and bio-oil rejuvenator
AU - Foroutan Mirhosseini, Ali
AU - Tahami, Seyed Amid
AU - Hoff, Inge
AU - Dessouky, S.
AU - Ho, Chun Hsing
N1 - Publisher Copyright:
© 2019 The Authors
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/12/10
Y1 - 2019/12/10
N2 - The objective of this study was to conduct a laboratory-based research study that evaluated the performance of asphalt mixtures prepared with date seed oil (DSO) modified binders containing different amounts of Reclaimed Asphalt Pavement (RAP) binder varying from 20 to 40%. To this end, moisture susceptibility, rutting performance, stiffness modulus and fatigue resistance of the mixtures were assessed using Modified Lottman (AASHTO T283), Wheel Tracking Test (WTT), Indirect Tensile Stiffness Modulus (ITSM) and four-point beam fatigue, respectively. Regression models were provided to estimate fatigue life of the mixes. The results showed that moisture susceptibility of the mixes was slightly influenced by DSO content. Rutting performance of the mixes was deteriorated, while the addition of DSO improved fatigue life of the specimens containing 20% RAP up to 15%. However, in order to employ 40% or more of RAP binder, other alternatives should be considered.
AB - The objective of this study was to conduct a laboratory-based research study that evaluated the performance of asphalt mixtures prepared with date seed oil (DSO) modified binders containing different amounts of Reclaimed Asphalt Pavement (RAP) binder varying from 20 to 40%. To this end, moisture susceptibility, rutting performance, stiffness modulus and fatigue resistance of the mixtures were assessed using Modified Lottman (AASHTO T283), Wheel Tracking Test (WTT), Indirect Tensile Stiffness Modulus (ITSM) and four-point beam fatigue, respectively. Regression models were provided to estimate fatigue life of the mixes. The results showed that moisture susceptibility of the mixes was slightly influenced by DSO content. Rutting performance of the mixes was deteriorated, while the addition of DSO improved fatigue life of the specimens containing 20% RAP up to 15%. However, in order to employ 40% or more of RAP binder, other alternatives should be considered.
KW - Bio-oil rejuvenator
KW - Date seed oil (DSO)
KW - Four-point beam fatigue test
KW - Modified Lottman test
KW - Moisture susceptibility
KW - Reclaimed Asphalt Pavement (RAP)
KW - Stiffness modulus
KW - Wheel Tracking Test
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U2 - 10.1016/j.conbuildmat.2019.07.191
DO - 10.1016/j.conbuildmat.2019.07.191
M3 - Article
AN - SCOPUS:85070630630
SN - 0950-0618
VL - 227
JO - Construction and Building Materials
JF - Construction and Building Materials
M1 - 116465
ER -